James s



inted Startet gaat ente;

JAMES s. HooToN, or NEW oAnLisLnyINDIANA.

Letters Patent No. 105,207, elated July 12, 1870.

FEED-WATER HEATER FOR LOCOMOTIVES.

The Schedule referred to in these Letters Patent and making part of the same.

letters of reference marked thereon, and being a part of this specification, in which- A Figure 1 is an elevation of my improvement, as attached to the smoke-stack of a locomotive;

Figure 2 is a vertical section of the same; and Figure 3 is a horizontal section, showing a plan on the line x :v A

, Similar letters of reference indicate corresponding parts in each figure.

The nature of this invention relates to the construction of a lime-extracting feed-water heater iu such a manner that it may be attached to a portable or locomotive-engine, surrounding the smoke-stack of the boiler.

It consists in so changing the structure of a heater, provided with overlapping shelves, induction and eduction-pipes and openings for water and steam, and arranged to heat and purify the feed-water, that it may be applied and used within a jacket surrounding the smoke-stack of a locomotiveengine.

In the drawing- A represents the smoke-stack of a locomotiveboiler, provided with the usual spark-arrester B.

C is a cylindrical condensing heater,A being an insular chamber formed byan outer wall, a, and an inner one, b, said chamber being closed at both ends, the; smoke-stack passing up through the inner one, which should be protected from too grcatAa degree of heat by an intermediate jacket, c.

I) are segmental annular plates of the form shown in gg. 3, alternately disposed in the heater as shown in g. 2.

E are openings in the lowerpart` of the heater,

through which a portion of the exhaust steam enters,

and F another, through which a jet of live steam enters when the exhaust-pipes deliver no steam to the heater,.as ou a down grade, when the steam is shut oi from the cylinders of the engine.

G is the escape-pipe, through which the steam leaves the heater.

H is the cold-water induction-pipe, and

I, the eduction-pipes.

J is a drain-cock, through which the contents of the heater may be drawn oi.

K are hand-holes, closed with suitable plates, giving access to the upper faces of the plates I).

L is-a jacket, which may be placed around the body of the smoke-stack, inclosing also the escape-pipe above the heater.

lJhe operation of this improvement may be dcscribed as follows: i

Gold Water is pumped into the heater at H, falling Aon the upper shelf in a continuous stream, falling thence in a thin sheet on the next below, traversing its length, and falling on the next below, and so on to the bottom. At the same time a portion of the exhaust steam is turned into the heater, entering it under the lower shelf, and, rising from shelf to shelf, imparts its heat to the water and to the shelves or plates.

The water being heated to a high degree,'readily parts with the earthy salts it holds in solution, which are precipitated upon and are retained thereon in the form of' a hardened crust or scale, the surplus steam (a portion of which is necessarily condensed by contact with the cold water), escaping at G. rlhe water,`

heated to a high degree, lis then drawn oti at I by the4 supply-pipes, and fed to the boiler-in a pure state, the advantages of Awhich are too well known to be further explained.

As often as may be necessarythe deposits may be removed from the plates through the hand-holes.

The device is equally applicable to portable boilers as to locomotives.

What I claim as my invention, and desire to secure by Letters Patent, is-

The feed-water heater C, provided with alternate broad and narrow annular shelves D, openings E and F, escape-pipe Gr, induction-pipe H, eduction-pipe I, and drain-cock K, in connection with the smoke-stack of a locomotive-engine or portable boiler, when constructed as described, and operating as and for the purpose set forth.

JAMES S. HOOTON. Witnesses: p

S. O. LANCASTER, NOAH WIL'rHoUs, F. D. WARNER. 

